Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2022	Oct. 02, 2021
Income Statement [Abstract]
Total revenues	$ 14,635	$ 13,264	$ 41,777	$ 38,649
Cost of revenues	8,175	7,482	23,073	21,820
Gross profit	6,460	5,782	18,704	16,829
Operating expenses:
Research and development	1,687	1,788	5,725	4,625
Sales and marketing	4,445	3,914	13,352	10,542
General and administrative	2,023	2,237	5,759	6,798
Total operating expenses	8,155	7,939	24,836	21,965
Loss from operations	(1,695)	(2,157)	(6,132)	(5,136)
Other (expense) income, net	(58)	0	(216)	2,378
Loss from operations before provision for income taxes	(1,753)	(2,157)	(6,348)	(2,758)
Provision for income taxes	14	8	51	24
Net loss	$ (1,767)	$ (2,165)	$ (6,399)	$ (2,782)
Net loss per share:
Basic	$ (0.11)	$ (0.14)	$ (0.40)	$ (0.18)
Diluted	$ (0.11)	$ (0.14)	$ (0.40)	$ (0.18)
Weighted average shares used in computing net (loss) income per common share:
Basic	15,986	15,824	15,921	15,272
Diluted	15,986	15,824	15,921	15,272